2021 Specialized Sirrus 3.0 Step Through vs 2021 Giant Escape 3
The M is the Giant Escape 3 size closest to your S Specialized Sirrus 3.0 Step Through. We match frame stack and reach. This is a geometry comparison, not a fit recommendation; stem, spacers, handlebars and saddle setup also affect your riding position.
What changes on the Giant Escape 3
Compared with the Specialized Sirrus 3.0 Step Through in S, the Giant Escape 3 in M places the top of the head tube 7 mm lower and 10 mm further forward, relative to the bottom bracket. Its wheelbase is 7 mm longer, which can contribute to stability at speed.
- Frame stack
- −7 mm
- Lower front end
- Frame reach
- +10 mm
- Longer frame reach
- Wheelbase
- +7 mm
- Longer: steadier at speed
- Head angle
- +1.0°
- Steeper: sharper steering
- Chainstays
- +5 mm
- Longer: more planted
The two frames
Specialized Sirrus 3.0 Step Through, SGiant Escape 3, MDrawn to scale and lined up at the bottom bracket.
Geometry side by side
| Measurement | Specialized Sirrus 3.0 Step Through S | Giant Escape 3 M | Difference |
|---|---|---|---|
| Reach | 400mm | 410 | +10 mm |
| Stack | 563mm | 556 | −7 mm |
| Head tube angle | 70° | 71.0° | +1.0° |
| Seat tube angle | 73.5° | 73.0° | −0.5° |
| Chainstay length | 440mm | 445 | +5 mm |
| Wheelbase | 1068mm | 1075 | +7 mm |
| Standover | 620mm | 754 | +134 mm |
| Seat tube length | 450mm | 485 | +35 mm |
| Fork length | 395mm | not listed | |
| Head tube length | 147mm | 130 | −17 mm |
| BB drop | not listed | 60 |
Differences are the Giant Escape 3 minus the Specialized Sirrus 3.0 Step Through. Full charts: 2021 Specialized Sirrus 3.0 Step Through, 2021 Giant Escape 3.
Where each sits in its class
Specialized Sirrus 3.0 Step ThroughGiant Escape 3
Each bike is ranked against the other commuter bikes on Quiver, on frame geometry alone. Not your hand position or ride feel.
What each ships with
The stock build of each bike's first listed trim. Parts that match are dimmed.
| Part | Specialized Sirrus 3.0 Step Through3.0 Step Through | Giant Escape 3Escape 3 |
|---|---|---|
| Derailleur | microSHIFT R9, Shimano Sora | Shimano Tourney |
| Cassette | Shimano Sora | Shimano TZ50 |
| Chain | KMC X9 | KMC Z7 |
| Tire | Specialized RoadSport Reflect | Giant S-X3 |
| Brake | Tektro HD-R280 | Tektro linear pull |
| Saddle | Specialized Bridge Sport | Giant Sport Comfort |
| Frame | not listed | Giant Escape 3 |
| Fork | not listed | Giant Steel |
| Shifter | not listed | Shimano EF41 |
| Crankset | not listed | Giant Forged Alloy |
| Chainring | not listed | Giant Forged alloy |
| Wheelset | not listed | Giant aluminum |
| Hub | not listed | QR |
| Rim | not listed | Giant Double-wall aluminum |
| Handlebar | not listed | Giant Sport XC |
| Stem | not listed | Giant Sport |
| Grips | not listed | Giant Sole-O |
| Seatpost | not listed | Giant Sport |
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